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Open Access Green as soon as Postprint is submitted to ZB.
Dose reduction potential of the scanning geometry CT D'OR: A simulation study.
Proc. SPIE 7258:72585R (2009)
The sampling geometry of CT-scanners plays an important role in the reconstruction of images. We have previously reported a test-device that directly collects the Radon data within a special scanning geometry, whose acquired data can be efficiently treated with series expansion algorithms such as, for example, OPED (Orthogonal Polynomial Expansion on Disc). This geometry has the potential of reducing the radiation exposure of the patient by about a factor of two. However, a fourth of the data must be obtained by interpolation within the measured projections. In this contribution, we show by a Monte Carlo simulation that this interpolation has no significant influence on the quality of the reconstructions.
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Publication type
Article: Journal article
Document type
Scientific Article
Editors
Samei, E.* ; Hsieh, J.*
Keywords
Ct ; Reconstruction ; Scanning Device ; Scanning Geometry
ISSN (print) / ISBN
0277-786X
e-ISSN
1996-756X
Journal
Proceedings of SPIE
Quellenangaben
Volume: 7258,
Article Number: 72585R
Series
Proceedings of SPIE
Publisher
SPIE
Publishing Place
Bellingham, WA
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Radiation Protection (ISS)